若|x|=|-5|，则x=______．

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问题填空题

答案

因为|x|=|-5|=5，

所以x=±5．

故答案为：±5．

填空题

读句子，写出正确的国家名。

1. It's north of the U. S.. It has Niagara Falls. __________________

2. It's west of China. It has a king or a queen. __________________

3. It's east of China. It has Statue of Liberty. __________________

4. It's flag is red, and it has five yellow stars. __________________

判断题

在方便的情况下，可以(禁止）用喊话、敲管子等方法发送信号。